/Engine/Plugins/FX/Niagara/Source/NiagaraEditor/Public/NiagaraEditorUtilities.h
Compare twoFNiagaraVariablenames for the sort priority relative to the first argument VarNameA. Sorting is ordered by namespace and then alphabetized.
namespace FNiagaraEditorUtilities { bool FNiagaraEditorUtilities::GetVariableSortPriority ( const [FName](API\Runtime\Core\UObject\FName) & VarNameA, const [FName](API\Runtime\Core\UObject\FName) & VarNameB ) }